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Nanoclusters

About: Nanoclusters is a(n) research topic. Over the lifetime, 14205 publication(s) have been published within this topic receiving 396093 citation(s).

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Papers
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Journal ArticleDOI: 10.1021/JA806804U
Abstract: A simple, one-pot, "green" synthetic route, based on the "biomineralization" capability of a common commercially available protein, bovine serum albumin (BSA), has been developed for the preparation of highly stable Au nanocrystals (NCs) with red emission and high quantum yield.

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Topics: Bovine serum albumin (53%), Nanoclusters (52%)

1,948 Citations


Journal ArticleDOI: 10.1021/JA016812S
Taeghwan Hyeon1, Su Seong Lee1, Jongnam Park1, Yunhee Chung1  +1 moreInstitutions (1)
Abstract: The synthesis of highly crystalline and monodisperse γ-Fe2O3 nanocrystallites is reported. High-temperature (300 °C) aging of iron−oleic acid metal complex, which was prepared by the thermal decomposition of iron pentacarbonyl in the presence of oleic acid at 100 °C, was found to generate monodisperse iron nanoparticles. The resulting iron nanoparticles were transformed to monodisperse γ-Fe2O3 nanocrystallites by controlled oxidation by using trimethylamine oxide as a mild oxidant. Particle size can be varied from 4 to 16 nm by controlling the experimental parameters. Transmission electron microscopic images of the particles showed 2-dimensional and 3-dimensional assembly of particles, demonstrating the uniformity of these nanoparticles. Electron diffraction, X-ray diffraction, and high-resolution transmission electron microscopic (TEM) images of the nanoparticles showed the highly crystalline nature of the γ-Fe2O3 structures. Monodisperse γ-Fe2O3 nanocrystallites with a particle size of 13 nm also can be...

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Topics: Nanoparticle (54%), Iron pentacarbonyl (53%), Electron diffraction (53%) ...read more

1,816 Citations


Open accessJournal ArticleDOI: 10.1021/ACS.CHEMREV.7B00776
Lichen Liu1, Avelino Corma1Institutions (1)
16 Apr 2018-Chemical Reviews
Abstract: Metal species with different size (single atoms, nanoclusters, and nanoparticles) show different catalytic behavior for various heterogeneous catalytic reactions. It has been shown in the literature that many factors including the particle size, shape, chemical composition, metal–support interaction, and metal–reactant/solvent interaction can have significant influences on the catalytic properties of metal catalysts. The recent developments of well-controlled synthesis methodologies and advanced characterization tools allow one to correlate the relationships at the molecular level. In this Review, the electronic and geometric structures of single atoms, nanoclusters, and nanoparticles will be discussed. Furthermore, we will summarize the catalytic applications of single atoms, nanoclusters, and nanoparticles for different types of reactions, including CO oxidation, selective oxidation, selective hydrogenation, organic reactions, electrocatalytic, and photocatalytic reactions. We will compare the results o...

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Topics: Nanoclusters (70%), Organic reaction (54%), Catalysis (52%) ...read more

1,572 Citations


Journal ArticleDOI: 10.1021/ACS.CHEMREV.5B00703
01 Sep 2016-Chemical Reviews
Abstract: Colloidal nanoparticles are being intensely pursued in current nanoscience research. Nanochemists are often frustrated by the well-known fact that no two nanoparticles are the same, which precludes the deep understanding of many fundamental properties of colloidal nanoparticles in which the total structures (core plus surface) must be known. Therefore, controlling nanoparticles with atomic precision and solving their total structures have long been major dreams for nanochemists. Recently, these goals are partially fulfilled in the case of gold nanoparticles, at least in the ultrasmall size regime (1–3 nm in diameter, often called nanoclusters). This review summarizes the major progress in the field, including the principles that permit atomically precise synthesis, new types of atomic structures, and unique physical and chemical properties of atomically precise nanoparticles, as well as exciting opportunities for nanochemists to understand very fundamental science of colloidal nanoparticles (such as the s...

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Topics: Nanoclusters (57%), Colloidal gold (51%), Nanoparticle (50%)

1,567 Citations


Open accessJournal ArticleDOI: 10.1103/REVMODPHYS.77.371
Francesca Baletto1, Riccardo Ferrando1Institutions (1)
Abstract: The structural properties of free nanoclusters are reviewed. Special attention is paid to the interplay of energetic, thermodynamic, and kinetic factors in the explanation of cluster structures that are actually observed in experiments. The review starts with a brief summary of the experimental methods for the production of free nanoclusters and then considers theoretical and simulation issues, always discussed in close connection with the experimental results. The energetic properties are treated first, along with methods for modeling elementary constituent interactions and for global optimization on the cluster potential-energy surface. After that, a section on cluster thermodynamics follows. The discussion includes the analysis of solid-solid structural transitions and of melting, with its size dependence. The last section is devoted to the growth kinetics of free nanoclusters and treats the growth of isolated clusters and their coalescence. Several specific systems are analyzed.

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Topics: Nanoclusters (62%)

1,490 Citations


Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202224
2021956
2020930
2019923
2018970
2017885

Top Attributes

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Topic's top 5 most impactful authors

Rongchao Jin

169 papers, 15.8K citations

Manzhou Zhu

131 papers, 4.4K citations

Jianping Xie

89 papers, 8.8K citations

Shuxin Wang

59 papers, 2.4K citations

Giovanni Mattei

55 papers, 1.4K citations

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